f = open("English.txt","r")
# print(f)
# content = f.read()
# newStr = ""
# for ch in content:
#     if ch == 'Z':
#         newStr+="A"
#     elif ch == 'z':
#         newStr+='a'
#     elif (ch>='a' and ch < 'z') or (ch>='A' and ch < 'Z') :
#         newStr+=chr(ord(ch)+1)
#     else:
#         newStr+=ch
#
# f.close()
# f2 = open("English加密后.txt","w")
# f2.write(newStr)
# f2.close()